DrugDB00675 (Tamoxifen)
Interacting Gene/EnzymeCytochrome P450 2D6
Gene NameCYP2D6
UniProt IDP10635
Defining Change(s)
Allele NameCYP2D6*56
Genotype(s)Not Available
Type(s)Effect Inferred
GroupsNon-functional CYP2D6
DescriptionPoor response to drug treatment, shorter time to relapse
  1. Li L, Pan RM, Porter TD, Jensen NS, Silber P, Russo G, Tine JA, Heim J, Ring B, Wedlund PJ: New cytochrome P450 2D6*56 allele identified by genotype/phenotype analysis of cryopreserved human hepatocytes. Drug Metab Dispos. 2006 Aug;34(8):1411-6. Epub 2006 May 5. [PubMed:16679388 ]
  2. Gaedigk A, Eklund JD, Pearce RE, Leeder JS, Alander SW, Phillips MS, Bradford LD, Kennedy MJ: Identification and characterization of CYP2D6*56B, an allele associated with the poor metabolizer phenotype. Clin Pharmacol Ther. 2007 Jun;81(6):817-20. Epub 2007 Mar 28. [PubMed:17392730 ]
  3. The Human Cytochrome P450 (CYP) Allele Nomenclature Database [Link]